Slot machine and playing method thereof

Abstract

In a slot machine, some of the symbols are rearranged by a controller on a display prior to some other symbols, during the base game. Before some other symbols are rearranged on the display, the controller accepts an external input requesting to shift the positions of the symbols which have already been rearranged. The controller shifts the positions of at least two or more symbols among some of the symbols which have already been rearranged.

1 . A slot machine comprising:
 a display on which a plurality of symbols that have been arranged are rearranged; and   a controller operable to accept an external input requesting to shift the positions of some of the symbols which have already been rearranged on the display before rearranging some other symbols and shift the positions of at least two or more symbols among the some of the symbols, at the time of rearranging the plurality of symbols on the display.   
   
   
       2 . The slot machine according to  claim 1 ,
 wherein the controller is operable to shift the positions of at least two or more symbols among the some of the symbols before rearranging the some other symbols.   
   
   
       3 . The slot machine according to  claim 1 ,
 wherein the controller is operable to shift the positions of at least two or more symbols among the some of the symbols within a predefined area on the display specified by the external input.   
   
   
       4 . A slot machine comprising:
 a display on which a plurality of symbols that have been arranged are rearranged; and   a controller operable to accept an external input requesting to shift the positions of some of the symbols which have already been rearranged on the display before rearranging some other symbols and shift the positions of at least two or more symbols among the some of the symbols before rearranging some other symbols, at the time of rearranging the plurality of symbols on the display.   
   
   
       5 . The slot machine according to  claim 4 ,
 wherein the controller is operable to shift the positions of at least two or more symbols among the some of the symbols within a predefined area on the display specified by the external input.   
   
   
       6 . A slot machine comprising:
 a display on which a plurality of symbols that have been arranged are rearranged; and   a controller operable to accept an external input requesting to shift the positions of some of the symbols which have already been rearranged on the display before rearranging some other symbols and shift the positions of at least two or more symbols among the some of the symbols within a predefined area on the display specified by the external input before rearranging some other symbols, at the time of rearranging the plurality of symbols on the display.   
   
   
       7 . A playing method of a slot machine, comprising:
 accepting an external input requesting to shift the positions of some of the symbols which have already been rearranged on a display before rearranging some other symbols at the time of rearranging a plurality of symbols that have been arranged on the display; and   shifting the positions of at least two or more symbols among the some of the symbols.   
   
   
       8 . The playing method of the slot machine according to  claim 7 , further comprising:
 shifting the positions of at least two or more symbols among the some of the symbols before rearranging the some other symbols.   
   
   
       9 . The playing method of the slot machine according to  claim 7 , further comprising:
 shifting the positions of at least two or more symbols among the some of the symbols within a predefined area on the display specified by the external input.   
   
   
       10 . A playing method of a slot machine, comprising:
 accepting an external input requesting to shift the positions of some of the symbols which have already been rearranged on a display before rearranging some other symbols at the time of rearranging a plurality of symbols that have been arranged on the display; and   shifting the positions of at least two or more symbols among the some of the symbols before rearranging some other symbols.   
   
   
       11 . The playing method of the slot machine according to  claim 10 , further comprising:
 shifting the positions of at least two or more symbols among the some of the symbols within a predefined area on the display specified by the external input.   
   
   
       12 . A playing method of a slot machine, comprising:
 accepting an external input requesting to shift the positions of some of the symbols which have already been rearranged on a display before rearranging some other symbols at the time of rearranging a plurality of symbols that have been arranged on the display; and   shifting the positions of at least two or more symbols among the some of the symbols within a predefined area on the display specified by the external input before rearranging some other symbols.